Bearing and method of assemdly thereof



June 13, 1933. J. 5. McWHlRTER BEARING AND METHOD OF ASSEMBLY THEREOF v Filed July 30, 1929 2 Sheets-Sheet 1 Ill/4 6 @z La June 13, 1933. J. s. McWHIRT'ER BEARING AND METHOD OF ASSEMBLY THEREOF Filed July 30, 1929 2 Sheets-Sheet 2 gnveutoz JOHN J'- fi h H 'R R aw W/$ M.

Patented June 13 1933 )1 1} Jewel-t e Emmet eetmzeteoet; eeimthe'tteum eppucehdn filed .Tuty so, 1929, feeriatm. 382,143. :Thiginventioh l'fllilttkwtt)j()IHilH1l)I)XQSand *zieeseive aunt eompzvetively rapidyeeulting npl'ovolnentet 111 methods of unzuuiteetul'e m lateral motion of the heerlng on thegourand" mnblyofjourhztt hem-lugszmiithoushuh eauslngg IIOSHIQVOY ewzgymg ot' the trucks mggeretor: 7 or me,- WhlCh 1e ohvlously obpetmnable.

@[tfthes heretofore been the prztetitw 'h'ytho i 11rthefmone it frequently happens to? one l'ztihvay zutteemploy jourlmhiheer and ,nuee or :motheetlmt the bearing of the box constructions Whieh hzweheeolhe more standard asseemhly becomes displaced from t or less stm'uhudfizeft in the Mt. V lttierotoitore its'hm'mal I)! eition with the result that a hot etz'mfl21rdyeonettuet'ione ()tthie nuturefor ex hearing is ohtatined. The foregoing; chew uuq'ite t'hexMeste" Gar Buildel's? mitten e of the stzmchud.assembly have eefwehlhlyeousistedof tl lewheeh jouthehthe been ea ctod as ihuetrzuziveof salient (helmelingi and the housing 1 01' box; 111 the mtvehte 'es fwithout intending to specify all etzulchh'd'eonettuetions it hae'heen eustomzu'j oi thethsQdY2111thgee ineictentto thepresent. tvfu'nmethe he): orhcmsingot one piece uhewstandard practice.

- 19' sufiieieht spneeunder the journal to pel It is t1letetore mnoug; the specie]. purposes $1 in the end of the housing, 'lhen thehOUSililg u m1: x1116hflktfiinflfifbfiliftedftlttffiifin'tflifh' ottmywiroeehtinventiontoprovide ajournal, tuuee' to permit the hemung to meerted hem-1.11;: mod housln eesemhly and a method n :eenflaty. "these i esteem-bled together between the top of thejournul and, the houshug tlhough enlophning provided thereto]: wil (wei'eome muohgi; others; the foregoing fiuwzuztuges oi the present etaheu'd pmeis permittedto be lowered intopos itiehehd tiee. t til 161 ztsreettxblythus 1 completed.The upper Tom Well uwzu'ethut these and similar disportion on sul'teee 0f the journal ahd the aft. Lmtegz es hztveheeh overeonle byzanttfricheurihgdoee not extend, completely around t'ionheerinp'e oit hall. or roller type, but they Theetemhu-d 'ournal henrineend housing tote been wereomein en other t )e of nnhhee 2 re eubmcted to a number o; SGlI- emmop; struetme. M1 1%; theretoreamong the theeopenmg 1111 the 1101151119,.which'mustwhe e 1ournei hem-mg and housing assembly F provided to permitqthehearing mm irlsettevt wt-ueh overeehoe t ot the itmreggoihgor shinas Well, eetineiz htel theztdvzmthgesin 1111 placeauukewitposeihleror the loss of oil 1h eeothey tuhrieztnt neeessezu'y I 1' propel luhi'isubstantially the ezuheflegreete anti-friction 'on otthehem'ihg and/oithe'loes 012mb bezuriiage ueeompheh that z'esult Without the mm effect by ingress ofduet dhrt Water oi use of anti iction hearing devices. It will 5; other" extuhjleoue mettelu, Ctheretofe," it istheleitote he upputent to thoee skihed in the netm in the stehthu'd essenihly to employ m; that a beau-i o'tthe eonstnurtion of my Hume tot 1 of e toeut'etoe the and ottthehour ihvei 'oh huvll'lfi-ll :11}. ot the feature: and edtime mem an ethhtiohel dert eepablei'oit s ot an alibi il'ietioh except the ohmiueted of eteeve rattle land noise amt ineepehte 'ofteoluplete nation of t'z'iettoh huteomt r eiiminutioxtof aid-t the trotuiles reitm'rettitol' oezu hmj type and hence less expensive both 98 lh the Second til-ace, ifirea ditheult 'meehahii ihithfl 21111 i xmegiuteimmee umk-eeavailable 1:11 operation to prowl-1y insert and fit the whee i (f euituhle for may minnow fofwhiel'l. he? 1131 5 it journal Withi'a'r the musing. it may he useah hut Dede-Hy adaptable and.

Ev is ohviohe tnet it e m'oper it is not nlzufte gtdvzu eotmty need he the mih'uy art; g1 ween-'12 wen improper hlhmeettoh :unt hit Accordinglyitle one of the pl'hleuml oh 1 o 10 tl'oubl S in ident to either thereof Witt jeete of the preeont nvention to provide an r t hmgto methodot 1 18561111 317 1112 a journal occur. n t t gwe Whet'ea been {ii 1n the hex- 1 1.5); nfportmnot the eu'ezuutotehee U" the 50 it employed httei e wmeet the hem having a portion of the length thereof reduced in diameter to form a shoulder at one end and a flange at the other end of the reduced portion.

A feature of the invention resides in a novel arrangement and combination of parts whereby the recessedportion of a shaft may be provided with a bearing completely sur rounding the same, together with a solid housing which may readily be positioned over said bearing, and to which the bearing may be rigidly fastened.

Another feature resides in the combination of a split bearing for a recessed shaft, or.

the like, and a solid housing for said bearing, together with means for expanding said bearing into the housing.

A. further feature pertains to a recessed shaft or axle provided with a bearing, and a one-piece housin or backing for said bearin said bearin bein ad'ustabl wedged b9 2 b within said housing and surrounding the said shaft toreduce end thrust.

A still furtherv feature pertains to the organization and arrangement of elements which go tomake up an axle box and bearing having long life, accurate lit, and which may be readily assembled on axles of the flanged end type.

Other features and advantages of the invention will be apparent upon a consideration of the following descriptions in the appended. claims.

Peferring to the drawings wherein like numerals designate similar parts throughout the several figures,

Figure 1 is a view in vertical longitudinal of an axle box and journal bearing according to the invention;

F ig. 2 is a perspective view of one form of split bearing used in accordance with the invention:

Fig. 3 is a detail View of member Fig. 4 is a partial cross-sectional view taken along the line l-4t of Fig. 1:

Fig. 5 is a detail view of a preferred form of lubricating means used with the device of Fig. 1: r

F 6 shows another modification of axle box and bearing using a different manner of lubricating:

Fig. 7 is a further modification of F ig. 1 cm nloying a different type of dust guard.

Referring more particularly to Figure 1, the numeral 1 designates an axle or shaft having at its bearing end a recessed or reduced portion 2 constituting what is known in the art as a standard M. C. B. journal. Surrounding the recessed end of the axle is the bearing brass 3 which is preferably made in two semi-cylindrical pieces 4 and 5, equal in length to that of the recessed portion 2 and having at one end a flange 6. One of the longitudinal edges of each half of the the bearing wedge bearing brass is provided with a tapered notch and these tapered notches register with each other to provide in effect a tapered opening for the reception of the wedge projection 7 on the slidable member 8 (Fig. 3). On the other edge of each half of the brass there is a circular notch which, when the two halves of the hearing are fitted together, provide a circular opening 9 for the passage of lubricating material to the journal.

For the purpose of enclosing the journal and for rigidly retaining the bearing in adjusted position, there is provided a housing adapted to slide over the journal and bearing and having the right hand end 10 closed except for a small opening 11 through which passes the wedge adjusting screw 12. Screw 12 terminates at one end in the adjusting head 13 and at the other end in a reduced portion let which is adapted to enter a corresponding recess in the housing. As shown more clearly in Fig. 3 the slidable member 8 has an internally threaded bore 15 for engaging the threaded. portion of screw 12. When the bearing and housing are assembled, as shown in Figure 1, the Wedge 7 is positioned in the tapered opening provided between the'contiguous edges of the bearing brasses and the wedge may, therefore, be moved longitudinally with respect to the screw 12, depending upon which way the latter is turned. Thus as the wedge 7 moves toward the right (Fig. 1) it expands the bearing members against the inner cylindrical wall 16 of the housing resulting in a rigid connection therebetween.

With the slidable member 8 and wedge 7 positioned on screw 12, as shown in Figure 1, it will be seen that the housing cannot be removed becauseof the engagement between the wedge 7 and the flanged end 17 of the journal. In order, therefore, to permit the housing to be slipped off the journal 2. depression, or trough 18 is provided in the lower wall of the housing and in alignment with screw 12. When screw 12 is turned to loosen the wedge the member 8 moves toward the left until it reaches the limit of its movement Where it is in registry with trough 18. As screw 12 is further rotated the member 8 abuts against the inner wall of the casing clamped therein throughout its circumferential periphery, the hearing may be turned hatingia" elosable down to give theeiieot' of a very close machine fit with respeot tothe journallfand is notdisi-urbed by vibration ofthe journal andassociated parts; accordingly speeial' nieans i'or eii eeting' proper lubrication must be. e111 'iloyedl 113011 the pa pose 51? eiteeting this luln'ioation it i referred to use an automatic lnl'irieating devicelotthe type disclosed in if tent'No. lifiirlflllt granted a t-11.19, 1927. it; detailed View of this device isshown in Fig 5 and comprises a oylilnjdri filler openiii -20. A ref 21 is nibtint within the Q the oil to be fed by coin vet-say looped Wit reservoir and Citllo bined capillary andgravity aetionl through a the outlet tube 22. 1 A bolt 23passes through the reservoir 1 the rpese of anel'ioring the latterto the entensionfia onthe housi11g(Fig.1).' The r gany suitabler ah/e means 25101' eontrolling the pressureot air'within thefreserroir n i 1 l vl'ien the odor is mum-a1 on the accordance Wllilltlifi teiniserature ot' the bearing parts .f For a detailed d iscriqption of the manner oi feedingoiliii'thistype oi (lei "lee reference arm he had to U. SL Patent No. 1,625,07 i referredto"hereinabovof 1 axle lioiis- 1 ingthe Wiek'QI registers Withthe end otthe vertical oil feed oh amber 26 WlIiClilS in 'regis i roove E25 which passes through the wall 1e axle housing and commun cates with a try with the oil teedopeningtl in the bearing brass above described. 1 V g -11 or the purpose of preyentrng aeoess of;

1 dust, moisturefand other'toreign matter to the interiorof the anleboX a guard eoihprlsing-a flexible ineniber is proridetll; Member QYis 'ire'ierably leather, or other similar sub- 1 1 stanee and haseylindrioal ody portion 28 1 a a i thereon by means of the ring 1 guard is adapted to be elainped against the:

which surrounds th e axlel an {held in place flanged riniEO ot' the axle housing by means of aring ail-and suitable bolts 32. f ilhisan rangenient otdust guarilhas been found to be very efficient withthe type of bee housing disclosed because oi the nor of retaining the eylind o Eand ilieien unan- .al portion of the (lust guardin contact ith the aXle. 1 From the foregoing description iii-Will be seen that the niannor inwhieh thebearing and as fol-f housing are assenibleclover lowszj 1 7 Both :halves of the brass p1 around the rec sort or redified e111 dot the axle and With the tapered, iiotehetl ed thereof disposedat theupper side ot tee The aiglo housing with theineinberfi ir trough 18 is then slipped endwiseoi er the bearing and the housing is turned ahially l until the theaxlo is wedge enters the tapered opening in the bear- The sorei v 12 ie then passed through o naning 11 and threaded throi gh bore 15 of member Thewedge'inenibei i now held in 1 the tapered notch and the housing may l reservoirlt) *er'voir providedwith iournal;

turned to the proper position asshown in Figure 1 with the wedge member below the jour nal. The screw 12 is thereuporr"further turiiedinitii the iiedge hasbeen moved a suite cieint distante to properlyexpand the halves 1 oi? the bearing within the housing. The screw- 12 may then be looked in its 2LLl1'LlSliGtl positlon in any Well known manner, preferably by jiassing a cotter pin through the head 13 and a eorrespoi iding a on] the housing.

lining thus rigidly clamped to each other the openin 9111 the bearing is in alignment with the oil teed chamber 26 in the hoiising and the lubricating nieans shown in Fig. 5 may then bebolted to the extension 2%. The dust guard 1 2'? which has beenprevlously placed in posiseinbled in position simply by sliding over the end of the journal.

Fig. 6 showsa modified term ot axle housing andlubrieating means. In this e1nbodilnent the parts correspondingut b1 designated byshoWn in Figs. 1 and 4; are

the same numeral. 3 11 It W-illbe noted, however, that the axle housing 33 is shown in this instance as provided at its left-hand endwith an opening 3% and a removable cover 35 i or gaining aooess to the edge adjusting screw 12. In-

stead of the automatic oiler "shown in Figure 1 thebearing of Fig. 6 is lubricated by a splash system. For this purposethe end of the housing 33 termed with an oil trough 36, and attached to the flanged end 17' of the journal by suitable bolts 87 is an oil splasher 38 formed from a inetalstrip intosuitableshape for this purpose. interior surface of the up 'ierflett hand end oi" the housing is grooved as indicated by 1 the numeral 39 so'that when the axle lsrotat-ingathigh speeds the oil Which is carried 131 0111 the trough 86 by the bent ends of member 38 is thrown by oentrlfugal force opening 1 in lateral projection With the housing and tion it will be 1 The i onto t-hegwall otthe housing and iseonveyed aloiig'tliegrooves 39 into the oildistributin groove ttl in the housmg, responosto;groove 25, of Fig. 1, and corninunieates with the opening 9in the bear ing HlGIfilJGli-Si Ontheother hand when the axle is' rotat 1g at low speeds the eentr it ugal toroe is insuflieientto splash the oil againsttheWallet thehouslng, but the oil which is carried around by member 38 drains from the portions 41 of the oil splasher onto the oil guide 42 which is formed integrally with the castin The remaining parts of this modification, including the dust guard, are similar to those of Fig. 1, and the manner of assembling the housing upon the journal is substantially the same with the exception, however, that the cover 35 must be removed during the assembly operation.

Fig. 7 shows a further modification of Figure 1, and like parts are designated by the same numeral. In this modification, however, a different type of dust guard is employed and comprises a channeled collar 43 which is pressed onto the axle 1. In the bottom of the channel is a dust guard ring 44 of felt, leather, or other suitable mate rial. Cooperatin with the dust guard ring .is an annular flange 45 which is formed in tegrally on the housing casting and which projects into the channel in member 43 and butts against the ring 44. Because of the centrifugal force of the axle during rotation moisture is prevented from gaining access to the journal and the ring 44 likewise prevents the access of foreign particles. -The manner of assembling the axle box in this modification is the same as that described in connection with Figure 1, and a further description is not believed necessary at this point. I

While in the foregoing descriptions specific apparatus has been described it will be understood that the invention is not to be limited thereto since in its broad aspects the invention enables a unitary or one piece housing to be assembled on a recessed shaft or axle, or on a shaft or axle having a reduced portion intermediate its ends.

What is claimed is: j

1. The method of assembling a bearing and a housing therefor on a journal having a flanged end, which comprises positioning a split bearing around said journa.l,'inwardly of the flanged end thereof, passing a housing endwise over the flanged end of the journal to completely enclose the bearing, and clamping the bearing sections rigidly against the internal annular wall of the housing.

2. The. method of assembling a journal bearing and a housing upon the reduced portion of a shaft, whichcomprises first positioning the bearing around the reduced shaft portion,.then positioning the housing around the bearing, and expanding the bearing.

against the inner wall of the housing.

3. The method according to claim 2, in

which a split bearing is employed and the expanding is accomplished by drawing a wedge between the bearing sections.

,4. The method of assembling a journal bearing and a separate unitary housing on an axle having a'portion of reduced diameter intermediate its ends, which comprises positioning said bearing around and within said reduced portion, passing said housing endwise over said bearing, and rigidly clamping said bearing against the inner wall of said housing.

5. In combination a shaft having a reduced bearing portion intermediate its ends, a split bearing for said reduced portion, a unitary housing closed at one end surrounding said bearing, an adjustable wedge carried by said housing, and means for moving said wedge into and out of engagement with said bearing while said bearing and housing are in assembled condition onsaid shaft.

6. In an axle box, the combination of an axle having a grooved bearing portion, an expansible bearing member fitting within said groove, a unitary housing open at one end only, means for expanding said bearing within said housing, said housing having the open end for allowing said housing to be passed over the bearing, a guard ring secured to the open end of said housing, and having a portion rubbing on said axle.

7. A combination as described comprising an axle of reduced diameter near the end to form an annular groove, a pair of semi-circular bearing brasses in said groox e shaped to form a wedge shaped groove along one line of separation, a single piece housing open at one end and having a substantially cylindrical seat into which the brasses slip when assembled on the shaft, a rotatable threaded member in said housing having a tool receiving head projecting through an opening in the housing and a wedge threadedly mounted on said member and lying in the groove in the brasses, whereby they are expanded tightly onto the circular seat of the housing.

8. A combination comprising a shaft having an annular groove near one end, a bearing member in said groove comprising semicircular brasses each recessed along one line of separation to form a wedge shaped opening, and each having a lip at one edge forming an annular flange when assembled on the shaft, a substantially closed housing open at one end and having a substantially cylindrical seat in which the bearing member rests, and means engaging the housing and recess in-the bearing member for expanding the brasses onto the cylindrical seat and engaging the annular flange with the end of the cylindrical seat to hold all the parts in assembled and operative relation.

9. A combination as described comprising a bearing housing of substantially closed construction open at one side only, a seat formed'in said housing having ashoulder at one end, a shaftprojecting into the housing through the open end having an annular recess near the end, flanged bearing brasses in said recess and aligned with said seat, and means interposed brasses for firmlybetween the housing and forcing them against said seat and their flanges against said shoulder, whereby the hearing brasses are held against rotation and longitudinal movement.

10. A combination as described comprising a bearing housing of substantially closed construction open at one side only, a seat formed in said housing having a shoulder at one end, a shaft projecting into the housing through the open end having an annular re 1 cess near the end, flanged bearing brasses in said recess and aligned with said seat, means interposed between the housing and brasses for firmly forcing them against said seat and their flanges against said shoulder,

whereby the bearing hrasses are held against rotational and longitudinal movement, and flexible sealing means closing the'open end of the housing and surrounding and contacting the shaft. 7

In testimony whereof I have hereunto set my hand on this 22 day of July A. l)., 1929.

JOHN S. MelWHIRTER. 

